Jacob jacobs



(No Model.)

J. J AGOBS. ILLUMINATING TILE.

in). 422,218. Patented Feb. 25, 1890.

UNITED f STATES PATENT OFFICE,

JACOB JACOBS, OF NEWV YORK, N. Y.

ILLUMINATING-TILE.

SPECIFICATION forming part of Letters Patent No. 422,218, dated February25, 1890.

Application filed April 24, 1889.

To all whom it may concern:

Be it known that I, JACOB J AOOBS, of New York, in the county of NewYork, and in the State of New York, have invented certain new and usefulImprovements in Illuminating-Tiles; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, in which-- Figure 1 is aperspective View of the ring employed for holding the lens of myillumihating-tile. Fig. 2 is a like view of the lens used with saidring. Fig. 3 is a perspective view, from above, of said parts ascombined. Fig. at. is a like view of the same from below. Fig. 5 is aperspective view of the completed tile, and Fig. 6 is a cross-section ofthe same ppon a line passing through the axes of two enses. 1

Letters of like name and kind refer to like parts in each of thefigures.

My invention is an improvement upon an illuminating-tile for whichLetters Patent were issued to me upon the 31st day of August, 1880, No.231,805, and is designed to secure an increase in the light-transmittingcapacity of the tile; to which end my said invention consists in therelative construction of the lens and its inclosing-ring and thecombination of the same in a tile, substantially as and for the purposehereinafter specified,

In the carrying of my invention into practice I employ a lens A, whichin side elevation has the form shown in Figs. 2 and 6, its sides beingstraight from its upper end nearly to its lower end, at which latterpoint is provided a circumferential flange or head a. The body of saidlens preferably decreases slightly in diameter from said head upward,but may be made with parallel sides, if desired. The lower face of saidlens is also re cessed, as seen in Figs. 4 and 6, but may be made plain,if preferred,

As a setting for the lens A, I employa ring 13, of suitable material,preferably brass, which has parallel sides and at suitable points aroundits periphery is provided with projec-= tions 1) and b, that correspondto and are formed by the production within the interior of said ring ofrecesses h and b. In depth fiericlNoi 308,891. (N0 model.)

the ring 13 corresponds to the like features of the lens A, while itsinterior diameter corresponds to the diameter of the head 0; of thelatter, so that when said lens is placed within said ring the lower endof the latter is just filled by and conforms to the shape of said head,while above the latter an annular space is left between the contiguoussurfaces of said parts, which space increases in horizontal dimensionsfrom its lower end upward, and, being filled with brimstone, cement, orother suitable waterproof packing, such as is employed for securingtile-lenses in place, operates to firmly fasten said lens within saidring. The lenses thus inclosed by rings are now placed overlight-openings c and c, that are formed within a metal plate or tile 0and are securedin place by means of Portland cement D or other likematerial, which is applied in a plastic form to the upper side of saidtile and fills the space between the peripheries of the rings, so as tobe flush with the upper ends of the same, as shown in Figs. 5 and 6, theresult dieing a walkingsurface composed almost entirely of glass andcement.

In the tile covered by my hereinbeforenamed patent the lower end of thelens is considerably smaller than the inclosing ring and between thelower ends of said parts is an annular body of cement, while in theherein-described tile the lower end of the lens completely fills itsring, and as a consequence has materially greater light transmittingcapacity than it would otherwise possess, so that a tile provided withthe new lenses for a given glass area of its upper surface is adapted tothoroughly light a space which would be but imperfectly lighted by atile of equal area of glass surface, but provided with the other form oflens.

Having thus described my invention, whatI claim is 1. Anilluminating-tile in which are combined a supporting-plate that isprovided with light openings and glass lenses that are placed over suchopenings and are each set within an inclosing-ring and entirely fill thelower end of the same, which inclosing rings are made separate from andrest upon said supporting-plate, and cement placed upon rings entirelyfills the lower portion thereof, said lenses and rings resting upon saidsupporting-plate, substantially as and for the purpose shown. 15 Intestimony that I claim the foregoing I have hereunto set my hand this9th day of April, 1889.

JACOB JACOBS.

WVitnesses: I

GEO. S. PRINDLE, Ms. E. HUTCHINSON.

